Surface condenser



Aug. 3 1926.

P. A, BANCE L SURFACE CONDENSER Filed Dec. 17,

1925 4 Sheets-Sheet 1' IN VEN TOR.

Aug. :3 1926.

' 1,594,920 P. BANCEL 4 SURFACE CONDENSER Filed Dec. 17, 1925 4 Sheets-Sheet 3 INVENTOR.

1925 j 4 sheets-Sine 4 Filed Dec. 17

INVENTOR Patented Aug. 3, 1926.

TED 51S TfEiS 1,594,9e are TENT arion.

PAUL A. 'BANCEL, OF 'NUTLEY, 'NEW JERSEY, :ASSIGNDR 1 0 'INGEBSOLLERANDLCOM- PANY, OF JERSEY CITY, NEW vJERSEY, -AJ CORPORATION OF FNEWLJJERSEY.

SURFACE CONDENSER.

(Application.filed Deeember17, 1925i. vSerial No. 76,052.

,This invention relates to surface ,c-on densers oi the type having a plurality of Water conducting cooling tubes extending across a :steam chamber and provided with 5 heads at the inlet and discharge ends of the condenser to supply cooling Water to the tubes 1 and .toreceive it therefrom.

One {of-the objects of the invention is to provide .an arnangernentaof cooling water supply pipes anda blow-off for the .inlet head which :is adapted to clear it fouling terial, from the entrance of the water tubes.

- lInthe drawin gaforming part of :the speci- :fic-ation and in whichfl'similar reference 115 characters refer .to, similar piar.ts-

Ehigurefl is a side elevation oflacondenser rQOIIStI'llCtBd in accordance iwithrthe practice 10f the-invention,

;F, gure .2 is .a :plan r view of the condenser @shown in :Eigure 1,

, Figure S ,iSaELIl elevation of the condenser in :Figure F1 .dookingdromdhe water :inlet end toward the ovater-rontlet end,,=and

Figure 4 is a side elevation-ofqaimodifica- 'rtion :of :.the ,invention, :xparts being broken :away to 2showithe iinternal--zarrangement 10f the :tubes andnthe-water nonnerition for the .devapormer.

JBGEBIIH Ig to; the drawlngsi and-i more pariticularlyftoxFiguresd, 2rande3,'theacondenser ieomprises a shell 10 within which 'zt-here rare arranged a plurality of steam condensing i'tubes illl'horizontally disposed EHCIOSS the ipath ot ithe steam'ienteringizthe :condenser sshell through :a steamiinlet 11 2. The con denser may lD'BipIOW/TlilGd'Wlth' aasuitableiconadensate outlet :tnot ashown). z-The'itubes J11 tare tadaptedeto :conduct cooling :water from .jthe water '..inlet1'hea;cl 13-rto a {discharge .head :14 and. are suitably sealed iagainst aleakage V :into'the casingclOzima tubeisheetl'5atithe inlet 13-;1I1Clitl18ltllb8 [sheet ;l6"- at the disand disehargeflhead i13 and 1 4 irespecltively.

In such cases more than :one supply pipe in which two supply pipes 1'7 ,and'twoldis- .charge pipes 18 are shown being adapted to carry off the discharge water.

i The condenser illustrated in "the drawing is provided with a pair of evaporizers 219' for the .uncondensable gas and vapor "from "the condenser. Vilater is {supplied -to the "devaporizers 19 from the main .supply pipe 2,0through pipes 21- and a U- connection-22.

.The water discharged from the .,coolin 'g"sys tern of the devaporizers isconveyed through a pipe 23to a lower chamber 24ginxthefinlet 'i head 13 I and then "through the lowest bankolf cooling tubes '11*to a compartmentf25fin the discharge head 14:. A pipe connection '26 .is provided from the compartment 25 ..to the. main discharge pipe'f27.

Separate valves 28an 29 are provid'edto \controlthe ,iflow oicooling water from i the 7 main supply pipefiO to the upper and lower compartments in the :inlet .headfl respec tively. Similar valves '30- and 31 are; r0-

fvided to control --.the discharge {of coo ing water ,from the-upper and lower compart- 17 are employed as in ithe present instance ments in theudischarge head "14 into the maindischargepipe 27.

I In operating a condenser of the type described, usually .the cooling water is not 'pure a-nd often contains slime and other iioulingimaterial which on enteringthe inlet head .l3 QlOgS' the entrance to-{the tubes 11 at the tubesheet l5. ,Qne-of the objects of 1 the invention is gto enable the tube :sheet to .'.be cleaned by 'theaction of the cooling water in theinlet head 13 To this end :there is provideda drain ,OI!blOW-Ofi plpBFp11ferlbly disposed at the sideyof the head .18 and providedflwitlra ;connectioni:33 to eachcompartmentiin the head 13. The valvesfiirare provided at the'connection to regulate the water discharge @through the pipe 32. The arrangement .shown is adapted .to permit any compartment of the head 13 to be drained and cleaned without interfering with the operation of the-condenser for .instance it it is desired to clealrtheupper com- :partmentofithe head -13the upper val've28 is c'lose'dand-the upper valve 34to-the-drain ;32:is opened. The valve'30'atthe-discharge end may alsobe closed permitting the water 'in theupper bank of tubes-ll toruniout of the compartment and tubestherebyfflushing the slime, leaves ortother fouling material into .the discharge pipe-27. "In order to permit a more rapid flow of water into the drain 32, there may be provided a vent 35 and air valves 36 at each discharge pipe 18. Upon opening the valve 36 air is permitted to enter as the water is displaced in the inlet and discharge heads 13 and 14. It the mere draining of the inlet head is not sutficient .1 condenser ispro-vided with a shell or casing the casing A. lVater is supplied to the cool- 1 Figure 4 s to clear out all of the touling'material the inlet valve 28 may be opened permitting) water to flow cross the face of the tube sheet 15 to insure thorough cleansing of said tube sheet and to flush the inlet head. The lower compartment of the inlet head 13 may be cleansed in the same manner.

hows a modification inwhich the A into which steam is admitted through the inlet '13 to be condensed by the cool ng tubes 0 preferably extending longitudinally in mg tubes C from a water head D which may be provided with partitions E and F to d1- vide the tubes G into groups, those in the i uppermost group being more active in con- (lensing andthose in the lower groups being less active since at these depths the proportion of steam to uncondensable air is less. The tubes C at their ends are sealed from thecasing A. by means oi a tube sheet .G into which the tubes 0 areexpanded or [otherwise 'sealed'to prevent leakage of water a suitable cooling tank (not shown).

from the water head D into the interior of the casing A. YVater is supplied to the inlet head D through a pipe H which branches in to two inlet pipes J and K and are provided 5 with valves L and 0 respectively to regulate the amount of water flowing to the upper and lower compartments respectively. The pipes J and K enter the water. head D at the side and preferably adjacent the tube sheet G. Normally cooling water flows from the inlet head D through the tubes C and thence into a discharge head P provided with discharge pipes Q, and R provided with the regulating valves S and T respectively and thence into a main discharge line U to Means are provided to direct the stream of water at relatively high veloc ty across the tube sheet G. To this end blow-oilsare provided comprising the pipes V and W Z) and c for the uncondensable gases drawn from the casing A. The devaporized gases may be exhausted by means of a vacuum pump (not shown) connected to the outlet pipes e and (Z respectively. Cold water for the cooling system of the 'devaporizers I) and may be supplied through the pi peX,

there being strainers F at the entrance to the .dcvaporrzers. 1 Pre1'erably the strainers are cylindrical and open at both ends and inclosed within suitable boxes 9 so that when a valve h is opened water may flow out through the pipe X across the strainers f and into a pipe 7' -to the discharge line U. Normally when the valve h is closes water will flow through strainers into the devaporizers Z and c andth'ence through a common conduit is into thevlowermost compartment in the inlet head D through tubes C. associt-ated therewith into a discharge line U. W'atc r may be'supplied to the pipe X for the devaporizers b and 0 from either of the upper two compartments in the inlet head D. Normally in operating a condenser of this type, the lower compartmentsshould be suppield withless water than the upper compartments since the upper compartment; performs the greater part of the steam condensation. There-fore, it may be advisable to close the valve "Y and open the valve Z for supplying water to the devaporizer. Vents g and 1' are provided in the discharge pipes Q and B respectively to permit air to enter the tubes and heads of the condensers to fill the space normally occupied by the cooling water. The vents Q and 7- are provided "with hand operated valves t and u, respectively, to control the vents.

1. A. surface condenser comprising a casing, water tubes within the casing, an inlet head for thewater tubes having a tube sheet sealing the water from the casing, and means for isolating certain quantities of Water'forreversing the flow of the isolated Water through the Water tubes to clean the tube sheet. I

2. A surface'condenser comprising a casing, water tubes Within the casing, an inlet head for the water tubes having atube sheet sealing the Water tubes from the casing, a discharge head for the water tubes, means for reversing the flow of- Water through the tubes and for directing the flow of Water across the tube sheet to clean the tube sheet including a drain pipe for said inlet head, and a vent in said discharge head;

3. A surface condenser comprising a casing, a plurality of cooling tubes in the easing, an inlet head for said tubes, a' tube sheet at the inlet head, a water supply pipe for the inlet head for admitting water parallel to the tube sheet and adrain pipe for the inlet head disposed opposite the supply pipe' with respect to the tube sheet.

7 4. A. surface condenser comprising a casing, water tubeswithin the casing arranged in groups, an inlet head for the'water tubes having a tube sheet sealing the Water tubes from the casing, and means for. isolating certain quantities of Water in certain groups of said tubes for reversing the 110w of the isolated Water through the tubes to clean the tube sheet, and a drain pipe for conveying such Water from the inlet head.

5. A surface condenser comprising a cas ing, Water tubes Within the casing arranged in groups, an inlet head for the Water tubes having atube sheet sealing the Water tubes from the casing, a discharge head for the Water tubes, and means for isolating certain quantities of Water for reversing the flow of such Water through the tubes to clean the tube sheet including drain pipes for i said inlet head and a vent in said discharge head. I

6. A surface condenser comprising a casing, a plurality of cooling tubes in the casing arranged in groups, an inlet head for said tubes, a tube sheet at the inlet head, Water supply pipes for the inlet head for admitting Water thereto parallel to the sheet, drain pipes for the inlet head disposed opposite the supply pipe with respect to the tube sheet, and means for isolating certain groups of tubes and for reversing the flow of such Water through said groups of isolated tubes to clean the tube sheet.

7. A surface condenser comprising a casing, a plurality of cooling tubes in the casing an inlet head for said tubes divided into separate sections, the inlet head for admitting Water parallel to the tube sheet and drain pipes at the inlet head disposed opposite to the supply pipes With respect to the tube sheet and means to cause the Water to flow across the tube sheet and certain sections of the inlet head separately from other sections.

In testimony whereof I have signed this specification.

PAUL A. BAN GEL.

a Water supply pipe at 

